Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 350mm stroke, G1/2 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ125 mm
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses four steel rods to clamp its aluminium barrel for high structural rigidity. The G1/2 port feeds the 32 mm rod, and a two-way piston seal ensures reliable pressure containment. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures.
The -20 code defines an external adjuster that shortens the extend stroke on-site by up to 20 mm, letting you fine-tune the end position from 330 to 350 mm without swapping the cylinder. It handles a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin. This plain SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 350 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20 Is Used
Press Tonnage Calibration
Dial in the exact 330 to 350 mm extend contact point on-site using the 20 mm adjuster to compensate for tooling variances during light press operations.
Diverters & Stops
Tune the extend stop precisely to match varying product widths on a packaging line without physically remounting the cylinder assembly.
Pallet Positioning
Lift and index heavy pallets up to 313 kg vertically with a 2:1 safety margin, adjusting the end stroke to clear obstructions safely.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20 the Right Cylinder?
Size this 125 mm bore against the 160 mm option, which jumps to 10053 N of push at 0.5 MPa, or step down if lower force is acceptable. The adjustable stroke is ideal when you need on-site end-position tuning across shared spares with slightly different stroke variants. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. Because this 350 mm stroke exceeds 500 mm is false, but for any stroke over 500 mm you must use a guide to prevent side-load wear. This non-magnet version cannot accept position sensors.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-20 FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it yields 8590 N push and 8028 N pull. The theoretical maximum is 1251 kgf at 1.0 MPa. It uses a G1/2 port and a 32 mm piston rod.
The nominal 350 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 20 mm on-site, giving a usable extend range of 330 to 350 mm. The retract end is fixed, and this stop is not a load lock.
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